Keeping Time: An Analysis of Errors in the Measurement of Unemployment Duration
利用当前人口调查的纵向微观数据，分析失业持续时间报告的一致性，发现初始月失业持续时间与调查间报告变化呈显著负相关，平均失业持续时间可能被高估至少两周。
This study uses longitudinal microdata from the Current Population Survey to examine the consistency with which unemployment duration is reported. An estimate of measurement error is proposed and analyzed. A significant negative relationship is found between the initial month's unemployment duration and the reported change between surveys. On average, persons who begin spells of unemployment in the second month report durations greater than the actual time elapsed. Overall, the average duration of unemployment in this sample may be overstated by at least two weeks. A brief discussion of some implications for empirical labor market research concludes the article.